Convert the given angle measure to degrees, minutes, and seconds.80.61°
A. 80°36'61''
B. 80°36'24''
C. 80°36'36''
D. 80°36'42''
Answer: C
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Make the requested preference schedule.Ten voters are asked to rank 4 brands of cell phones: A, B, C, and D. The ten voters turn in the following ballots showing their preferences in order:
Make a preference schedule for these ballots.
A. 
B. 
C. 
D. 
Solve.Find two numbers whose product is 18 and the sum of whose reciprocals is 
A. 324 and 
B. 162 and 
C. 36 and 
D. 2 and 9
Solve the problem.In the formula A(t) = A0ekt, A is the amount of radioactive material remaining from an initial amount A0 at a given time t, and k is a negative constant determined by the nature of the material. A certain radioactive isotope decays at a rate of 0.275% annually. Determine the half-life of this isotope, to the nearest year.
A. 109 yr B. 3 yr C. 252 yr D. 182 yr
Graph the line y = mx + b for the given values.m = 
, b = -2
A. 
B. 
C. 
D. 